2.5.2.4 Serial Port Configuration (UART CONFIG)
The AlphaLine instrument is equipped with 4 serial ports (also called UART or COM).
The settings of the serial ports are divided over two screens as shown in Figure 35: UART Screen 1 on page 40 and
Figure 36: UART Screen 2 on page 40. Use the < or > button to toggle between the screens.
The default setting for NMEA (IEC 61162-1) data is 4800 baud, 8 databits, 1 stopbit. The default setting for Modbus over
serial port is 19200 baud, 8 databits, 1 stopbit and EVEN parity. See also Default Values AlphaLine Instrument on page
25.
Select and configure NMEA when a sensor is connected with the standard NMEA signals. Select ModbusMaster when
an interface (such as Analog Interface Mk.2 or AlphaTurn Interface Mk.2) is used.
Figure 35: UART Screen 1 Figure 36: UART Screen 2
1. In the MENU, touch the ADV SET button.
The PASSWORD screen appears.
2. Key in the password and confirm with the
√
button.
The ADVANCED SETTINGS MENU appears.
3. Touch the UART CONFIG button.
The UART screen 1 appears, see Figure 35: UART Screen 1 on page 40.
4.
• Touch the + or – button to set UART from 0 to 3.
• Touch the + or – button to set PARITY to ODD, EVEN, FORCED 0, FORCED 1, NONE.
• Touch the + or – button to set STOP BITS to 1 or 2.
5. Touch the > button to toggle to screen 2, see Figure 36: UART Screen 2 on page 40 and follow the same principle
as for screen 1. Touch the < button to return to screen 1.
6. Touch the
√
button when the settings are correct.
7. If settings are modified, restart the instrument to initialize the serial port again.
40 | Operation
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